brownt
Member level 3
Are ultrasonic transducers available with built in circuitry so that only need a DC voltage is needed to operate it?
How do I consider safety/ear damage, when using one?
What would be the best way to have an ultrasonic output with variable frequency?
How do I consider safety/ear damage, when using one?
What would be the best way to have an ultrasonic output with variable frequency?